Chrome side panel: expose Max thinking effort when available

What variant of Codex are you using?

Chrome side panel / browser extension

What feature would you like to see?

Please expose the Max reasoning/thinking-effort level in the Chrome side panel’s model/reasoning picker whenever the signed-in account, model, plan, and rollout support it.

The desktop app provides a way to enable or select Max, but the Chrome side panel does not expose the same control or document a separate extension setting. The side panel should either honor the same eligible setting as the desktop app or provide a clearly labeled extension setting.

Expected behavior:

1. Max appears in the Chrome side panel picker when available.
2. Selecting Max works for the current side-panel conversation.
3. Availability follows the same entitlement and rollout rules as the desktop app and web.
4. If Max is unavailable, the UI explains why.

This is a request for feature parity and user control, not a request to bypass plan or rollout restrictions.

Start by locating the Chrome side panel’s model/reasoning picker and trace how the desktop app and web determine Max eligibility. Compare entitlement and rollout handling, then verify that eligible accounts can select Max, ineligible accounts receive an explanation, and the setting applies to the current conversation.